ERT 1557 Ground Resistance Tester

Suitable for use on 110 v, 230 v and three phase electrical systems, this special lightweight unit provides accurate Earth electrode resistance measurement without disconnecting the electrode. It can also be used to measure soil resistivity.

Ground resistance measurement is carried out using 2, 3 and 4-wire method. The ERT has an internal memory for 500 test results which you can download to your conventional PC. Its user-friendly features include a large rotary dial for test selection, large LCD and simple push button test activation. The unit is supplied with four Earth spikes and full test lead set. The ERT is one of the most competitive Ground resistance testers on the market.

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Key Features

Current Clamp measurement (when purchased with Current Clamp)
Earth Resistance measurement
Battery powered
Download to PC
Store up to 500 records
2, 3, or 4 wire measurement

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Technical Specification

TESTS

Earth Resistance 2, 3 and 4 wire method

Display Range 0.00ohm - 50.0kohm

Measuring Frequency 125 Hz +/- 1 Hz

Measuring Current <20mA effective

Measuring Voltage <50V effective sine wave

Earth Resistance using current clamp

Display Range 0.0ohm - 2.00kohm

Measuring Frequency 125 Hz +/- 1 Hz

Measuring Current <20mA effective

Measuring Voltage <50V effective sine wave

Specific Earth resistance (p)

Display Range 0.00ohm - 1999kohm

Measuring Frequency 125 Hz +/- 1 Hz

Measuring Current <20mA effective

Measuring Voltage <50V effective sine wave

ADDITIONAL INFORMATION

Dimensions 10" x 4" x 2"

Weight 1.7lb

Memory 500 memory locations

Communication USB

Compliance EN 61557-1, -5, IEC61010-1, 300V CAT II

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